﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Scheduler;
using PI = Microsoft.Phone.Info;
using Microsoft.Phone.Shell;

namespace OverlakeApp
{
    /// <summary>
    /// The app class encapsulating the application.
    /// </summary>
    public partial class App : Application
    {
        /// <summary>
        /// The dispatcher on the UI thread of the app.
        /// </summary>
        public static System.Windows.Threading.Dispatcher Dispatcher;

        /// <summary>
        /// If the app has been loaded by the designer, theis property is <value>true</value>.
        /// </summary>
        public static bool IsInDesignMode
        {
            get
            {
#if Silverlight
                return !HtmlPage.IsEnabled;
#else
                return DesignerProperties.IsInDesignTool;
#endif
            }
        }

        /// <summary>
        /// Provides easy access to the root frame of the Phone Application.
        /// </summary>
        /// <returns>The root frame of the Phone Application.</returns>
        public PhoneApplicationFrame RootFrame { get; private set; }

        /// <summary>
        /// Constructor for the Application object.
        /// </summary>
        public App()
        {
            var v = System.Globalization.CultureInfo.CurrentCulture;

            // Global handler for uncaught exceptions. 
            UnhandledException += Application_UnhandledException;

            // Standard Silverlight initialization
            InitializeComponent();

            // Initialize our custom style
            InitializeStyles();


            // Add our background agent for our tile
            StartPeriodicAgent();

            // Phone-specific initialization
            InitializePhoneApplication();

            // Show graphics profiling information while debugging.
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // Display the current frame rate counters.
                Application.Current.Host.Settings.EnableFrameRateCounter = true;

                // Show the areas of the app that are being redrawn in each frame.
                //Application.Current.Host.Settings.EnableRedrawRegions = true;

                // Enable non-production analysis visualization mode, 
                // which shows areas of a page that are handed off to GPU with a colored overlay.
                //Application.Current.Host.Settings.EnableCacheVisualization = true;

                // Disable the application idle detection by setting the UserIdleDetectionMode property of the
                // application's PhoneApplicationService object to Disabled.
                // Caution:- Use this under debug mode only. Application that disables user idle detection will continue to run
                // and consume battery power when the user is not using the phone.
                PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;
            }
        }

        private void InitializeStyles()
        {
            if (!IsInDesignMode)
            {
                ThemeManager.ToLightTheme();
                (App.Current.Resources["PhoneAccentBrush"] as SolidColorBrush).Color = Color.FromArgb(0xFF, 0x35, 0x6A, 0x20);  // Dark greenish from Overlake color palette
            }
        }


        private const string periodicTaskName = "OverlakeAppHomeTile";
        private PeriodicTask periodicTask;
        private void StartPeriodicAgent()
        {
            // Obtain a reference to the period task, if one exists
            periodicTask = ScheduledActionService.Find(periodicTaskName) as PeriodicTask;

            // If the task already exists and background agents are enabled for the
            // application, you must remove the task and then add it again to update
            // the schedule
            if (periodicTask != null)
            {
                RemoveAgent(periodicTaskName);
            }

            periodicTask = new PeriodicTask(periodicTaskName);

            // The description is required for periodic agents. This is the string that the user
            // will see in the background services Settings page on the device.
            periodicTask.Description = "This demonstrates a periodic task.";

            // Place the call to Add in a try block in case the user has disabled agents.
            try
            {
                ScheduledActionService.Add(periodicTask);
                //PeriodicStackPanel.DataContext = periodicTask;

                // If debugging is enabled, use LaunchForTest to launch the agent in one minute.
                if (System.Diagnostics.Debugger.IsAttached)
                    ScheduledActionService.LaunchForTest(periodicTaskName, TimeSpan.FromSeconds(15));

            }
            catch (InvalidOperationException exception)
            {
                if (exception.Message.Contains("BNS Error: The action is disabled"))
                {
                    MessageBox.Show("Background agents for this application have been disabled by the user.");
                }
            }
        }
        private void RemoveAgent(string name)
        {
            try
            {
                ScheduledActionService.Remove(name);
            }
            catch { }
        }

        // Code to execute when the application is launching (eg, from Start)
        // This code will not execute when the application is reactivated
        private void Application_Launching(object sender, LaunchingEventArgs e)
        {
        }

        // Code to execute when the application is activated (brought to foreground)
        // This code will not execute when the application is first launched
        private void Application_Activated(object sender, ActivatedEventArgs e)
        {
        }

        // Code to execute when the application is deactivated (sent to background)
        // This code will not execute when the application is closing
        private void Application_Deactivated(object sender, DeactivatedEventArgs e)
        {
            Settings.Save();
            // Ensure that required application state is persisted here.
        }

        // Code to execute when the application is closing (eg, user hit Back)
        // This code will not execute when the application is deactivated
        private void Application_Closing(object sender, ClosingEventArgs e)
        {
            Settings.Save();
        }

        // Code to execute if a navigation fails
        private void RootFrame_NavigationFailed(object sender, NavigationFailedEventArgs e)
        {
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // A navigation has failed; break into the debugger
                System.Diagnostics.Debugger.Break();
            }
        }


        void RootFrame_Navigating(object sender, NavigatingCancelEventArgs e)
        {
            Settings.Save();
        }

        // Code to execute on Unhandled Exceptions
        private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
        {
            if (e.ExceptionObject is ViewModels.AppClosureException)
                return;

            Exception exc = e.ExceptionObject;

            var nettype = Microsoft.Phone.Net.NetworkInformation.NetworkInterface.NetworkInterfaceType.ToString();
            AppService.ErrorReport err = new AppService.ErrorReport()
            {
                Timestamp = DateTime.Now,
                AppCurrentMemoryUsage = PI.DeviceStatus.ApplicationCurrentMemoryUsage,
                AppPeakMemoryUsage = PI.DeviceStatus.ApplicationPeakMemoryUsage,
                DeviceFirmwareVersion = PI.DeviceStatus.DeviceFirmwareVersion,
                DeviceHardwareVersion = PI.DeviceStatus.DeviceHardwareVersion,
                DeviceManufacturer = PI.DeviceStatus.DeviceManufacturer,
                DeviceName = PI.DeviceStatus.DeviceName,
                DeviceTotalMemory = PI.DeviceStatus.DeviceTotalMemory,
                ExceptionStackTrace = exc.StackTrace,
                ExceptionType = exc.GetType().ToString(),
                ExecptionMessage = exc.Message,
                NetworkType = nettype,
                PowerSource = PI.DeviceStatus.PowerSource.ToString(),
                Username = (Resources["MainVM"] as ViewModels.OverlakeViewModel).LoginService.Username
            };

            Settings.AddOrUpdateValue("LastError", err);
            Settings.Save();


            if (System.Diagnostics.Debugger.IsAttached)
            {
                // An unhandled exception has occurred; break into the debugger

                System.Diagnostics.Debugger.Break();
            }

            if (exc is System.ServiceModel.EndpointNotFoundException)   // Well crap, the net is down.
            {
                e.Handled = true;
            }
            else
            {
                if (MessageBox.Show("Exception thrown: \n-------\nMessage:\n-------\n" + e.ExceptionObject.Message + "\n--------\nAt:\n--------\n" + e.ExceptionObject.StackTrace, "Oops...Continue?", MessageBoxButton.OKCancel) == MessageBoxResult.OK)
                    // Try to carry on.  See what happens.
                    e.Handled = true;
            }
        }

        #region Phone application initialization

        // Avoid double-initialization
        private bool phoneApplicationInitialized = false;

        // Do not add any additional code to this method
        private void InitializePhoneApplication()
        {
            if (phoneApplicationInitialized)
                return;

            // Create the frame but don't set it as RootVisual yet; this allows the splash
            // screen to remain active until the application is ready to render.
            RootFrame = new TransitionFrame();
            RootFrame.Navigated += CompleteInitializePhoneApplication;
            RootFrame.Navigating += new NavigatingCancelEventHandler(RootFrame_Navigating);
            // Handle navigation failures
            RootFrame.NavigationFailed += RootFrame_NavigationFailed;

            // Ensure we don't initialize again
            phoneApplicationInitialized = true;
        }

        // Do not add any additional code to this method
        private void CompleteInitializePhoneApplication(object sender, NavigationEventArgs e)
        {
            // Set the root visual to allow the application to render
            if (RootVisual != RootFrame)
                RootVisual = RootFrame;

            // Remove this handler since it is no longer needed
            RootFrame.Navigated -= CompleteInitializePhoneApplication;
        }

        #endregion
    }
}